GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

1

  1. Disconnect the HUD switch connector.
  2. Turn the ignition switch to RUN.

Does the HUD display stay on?

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Go to Step 2

Go to Step 3

2

Repair the short to B+ on CKT 622.

Is the repair complete?

--

Go to Diagnostic System Check - Instrument Cluster

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3

Replace the HUD switch.

Is the repair completed?

--

Go to Diagnostic System Check - Instrument Cluster

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